22.
All Organisms Pass Along Hereditary Traits Genes carry hereditary information Genes are composed of DNA Heredity is the reason children resemble their parents Mutations change DNA code and can be passed from generation to generation

25.
All Living Things Develop Development involves a change in the physical form or physiological make-up of an organism - An example would be how a frog is conceived and born. - A frog begins as a single cell in a fertilized egg and then grows into a tadpole and eventually into a fully grown frog.